Home / 406,669.90-561,204.45-225,409.06

Finding the Fourth Proportional to 406,669.90, 561,204.45 and 225,409.06

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Solution

The fourth proportional to 406,669.90, 561,204.45 and 225,409.06 is: 311,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,669.90 : 561,204.45 = 225,409.06 : x
  2. Step 2: Convert to fraction form
    406,669.90/561,204.45 = 225,409.06/x
  3. Step 3: Cross multiply
    406,669.90x = 561,204.45 × 225,409.06
  4. Step 4: Simplify right side
    406,669.90x = 126,500,568,243.82
  5. Step 5: Solve for x
    x = 126,500,568,243.82/406,669.90
  6. Step 6: Final answer
    x = 311,064.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.